Portable hydrocarbon furnace



March 14, 1950 T. KELLER 2,500,610

PORTABLE HYDROCARBON FURNACE Filed June 11, 1945 2 Sheets-Sheet l 0 $652, 61 Q 54 i4 2,; Z A f-LB'J. 55 66 m 24 r3 4?. i9 y v Thomas KdlatPORTABLE HYDROCARBON FURNACE Filed June 11. 1945 2 Sheets-Shut 2' "I/ 764 I A Th nas Keller I T. KELLER I 5 95 0 Patented Mar. 14, 1950 UNITEDSTATES ersm QFFICE PORTABLE HYDROCARBON FURNACE Thomas Keiler,Minneapolis, Minn, assignor, by

mesne assignments, to Cedarberg Manufacturing Company Inc., Minneapolis,Minn, a corporation of Minnesota Application J un 11, 1945, Serial No.598,746 12 Claims. (01. 158--32)I fuels and to burn the same over longperiods of time, without becoming fouled by carbon deposits and withoutthe burning-out of the furnace parts.

A further object of the invention is to provide a device, as above, inwhich the initial generation of gas, through the medium of a primingliquid, is effected quickly and with ease and in which the continuednormal generation of gas is efficiently accomplished throughout theentire range of graduation of the burner flame.

Other objects of the invention reside in the novel combination andarrangement of parts and in the details of construction hereinafterillustrated and/or described.

In the drawings, Fig. 1 is an elevational view and Fig. 2 is a plan Viewillustrating a furnace in embodiment of my invention, portions of thestructure portrayed in both of said views being 1 broken away to revealotherwise hidden parts;

Fig. 3 is an enlarged vertical sectional view in detail taken as on theline 33 of Fig. 2; Fig. 4

is an enlarged sectional View in detail taken as on the line i- -i ofFig. 2 and illustrating the valved fitting in the liquid-fuel linebetween the pressure tank and the generating ring, and Fig. 5 is a View,similar to Fig. 4, taken as on the line 5+5 of 2 and. illustrating thevalved fitting in the gas line taking off from the generating ring.

Reference being had to the accompanying drawings, wherein similar partsare designated by similar reference characters throughout the severalviews, it will be seen that the illustrated embodiment of my inventionincludes a tank forming the base of the portable structure.

In the top of this tank It] is a filler-opening (not shown) normallyclosed by a filler-cap I I in -,which is embodied an air admission valveI 2.

Rising from the top of the tank and spaced 'apart about the axis thereofare a number of legs l3, each. consisting of an upright reach l4 havinginturned flanges [6, I at its upper and lower, ends, respectively, thelatter forming a foot and the former forming a mounting upon which aportion of the burner rests.

The burner indicated in its entirety by the reference character X,includes a generating ring A, a primary mixing member B and a secondarymixing member C. Forming a part of the secondary mixing member C is atray I1 having lugs l8 extending radially outward therefrom. These lugsit rest on and are secured by bolts l9 to the mounting flanges l6 of thelegs l3. Supported by said legs l3, the tray H, in turn, supports theremaining parts of the burner. This tray ii is centrally apertured, asat 29, and has an annularly upturned deflector-rim 2|.

The generating ring A is annularly tubular, as well as axially tubular,and is preferably made of thin sheet metal formed to provide a thinchamber 22 between inner and outer concentric walls 23, 24. As shown,said walls 23, 24 are turned upon themselves at the upper edge of thering A, the gap between the two walls at the lower edge of the ringbeing closed by welding material 25. Disposed axially upright, the gen--erating ring A rests with its lower edge bearing upon the lugs 18 of thetray ll, the inner wall 23 of said ring A being spaced outwardly of thedeflector-rim 2| of said tray to provide an annular air-admission port26 between said ring and. said tray.

A liquid-fuel supply line, leading from the interior of the tank [0 tothe generating chamber 22 of the ring A, comprises an upright pipe 21extending through the top of the tank, a valved fitting 28 (Fig. 4) atthe upper end of said pipe 27! and a nipple 29 disposed laterallybetween said fitting and ring. The fitting 28 has a passagewaytherethrough consisting of a series of branches 30, 3! and 32, thebranch 32 being formed to provide a seat for a needle-tip, 33 on avalve-stem 34 threaded into said fitting 28 and supplied with a knob 35for turning the same. The nipple 29 takes-offirom the fitting 28 andextends through the outer wall 24 of the ring A to bring the nipple 29into communication with the generating chamber 22 interiorly of saidring.

The gas line, leading from the generating ring A, consists of ahorizontally disposed nipple 36 and a valved fitting 31 (Fig. 5)depending therefrom. Said nipple 36 is axially aligned with the nipple29 diametrically of the generating ring A,

re inner end of nipple 36 extending through the outer wall 24; of saidring to bring said nipple into communication with the generating chamber22 within said ring. A passageway extending through the fitting 37consists of a series of 55 and primer-pan 51.

branches 38, 39 and 40, the latter of which constitutes a horizontallydirected outlet orifice theupper portion of the body 44 of said mixingmember B are a number of lugs 47 which are fastened by screws 48 to thetray H. 44 is thus positioned relative to the tray to bring the open-topof the mixing chamber 45 into registry with the aperture 20 in said trayl'l. A

gasket, as at 49, is interposed between said body and tray and themixing tube 46 is axially aligned with-the discharge orifice 40 of thegas supply fitting 31, the open end of said tube 46 being 10-catedadjacent to the said fitting 31 so that the influx of gas thereintojetting from said, orifice '45 will induce an accompanying influx of airinto said tube. Within the tube 46' is a deflectorvane 55'which servesto create turbulence in the inflowing generated gas and air, therebyenhancing the mixture thereof. Rising from the outer extremity of themixing tube 45 is a fork which receives the nipple 36 between itsbranches 52. These branches'secure the nipple 35'1aterally'relative tosaid fork 5| and a keeperscrew 53, threaded through one of the branches.52, prevents any unpremediated lifting of said nipple relative to saidfork.

In addition to the tray H, the secondary mixing member C includes acircular cap 54 spaced above said tray, and further includes an annularplate 55 located fiatwise between and vertically spaced from said capand tray, the cap 54 and annular plate 55 being axially aligned withthe. tray l1 and with the body 44 of the primary mixing member B. Anupright stay-bolt 56, headed at its upper end, extends downwardlythrough the center of the cap 54 and through the bottom 'of the body 44of the primary mixing member B.

The lower threaded end ofthis stay-bolt 56 extends through a mainprimer-pan 5'! beneath said body 44 and is screwed into a nut 58 weldedto said pan at the lower side thereof. Thus, said stay-bolt 55 functionsto center the cap 54 and to hold it in place along with the annularplate Posts 59, disposed in holes in the annular plate 55 atcircumferentially spaced localities, are upset at their upper portionsand thus firmly wedged in place rela-- tive to said annular plate. Thelower portion of eachpost 59 extends beneath the plate 55 and forms afoot 54 which rests upon the tray i! and spaces. said plate 55thereabove. The upper portion of each post is formed with a shoulder 9ifor supporting the cap 54 in vertically spaced relation above theannular plate 55. The upper extremity of each post 59 is reduced indiameter to form a pintle 62 which is received in a companion hole 63formed in the cap 54. Thus, said posts I t 59 serve to space the annularplate 55 from the tray H and the cap 54 from said annular plate, andserve further to center said annular plate 55 relative to the cap 54.The annular plate 55 is struck from relatively thin stock and, thus Saidbody 7 4 gin thereof and, paired with said upstruck beads 64, aredownstruck beads 55 formed in the outer margin of said plate 55. Thebeads 54, 65 of each pair are aligned radially of the annular plate 55on a radial line intersecting the axis of one of the posts 59. Thus,located relative to the posts 59, said beads 54, 55 add virtuallynoimpedance thereover to the radially outward passage of the fuel mixturein a lower stratum between the tray H and annular plate 55 and in anupper stratum between said annular plate 55 and the cap 54.

The cap 54 has an annular flange 55 at the perimeter thereof extendingupwardly to the level of the upper edge of the generating ring A. Thisflange 55 is inwardly spaced at its extreme lower portion from the upperportion of the upturned deflector-rim 2i of the tray 11 and, throughoutits major portion, said flange 56 is inwardly spaced from the inner wall23 ofsaid generating ring A. Between the generating ring A at theoutside and the cap-flange 66 at the inside, a flue-like burner mouth Blis formed, the same opening at the top thereof at the level of the upperedges of said generating ring and cap-flange. The tray l'l opensupwardly about the cap 54 into the lower portion of the burner mouth 61and likewise opening into said portion of said mouth 51 is the annularport 25 through which secondary air is admitted.

An auxiliary primer-pan 68 secured to the main primer-pan 5i underliesthe fitting 31 and said pans 5?, 63 are provided with wicks 69 to absorbprimer fluid introduced thereto.

Various implement-supporting superstructures (not shown) to meet variousspecial require- 'ments in the useof the present device may be anchoredto the tray-lugs I8 by the bolts l9 and a handle attached in suitablemanner to any such superstructure may be employed in Carrying the devicefrom place to place.

In operation, priming fluid, such as alcohol, saturating the wicks 69 inthe primer-pans 51, 68, is lighted and the'needle-tip 33 on valvestem 34is turned back from its seat to permit liquid fuel, such as kerosene, topass from the pressure tank it into the chamber 22 in the generatingring A.- Heat from the burning priming fluid heats the burner hearts,the liquid fuel in the then amply heated generating ring being convertedinto a gas which, flows to and out of the discharge orifice upontheunseating of'the needle-tip 4i on valve stem 42. Said gas,

jetting from said orifice 45, enters the heated generating tube and withit induces the influx of air into said tube 46. Turbulence of the'gen-'erated gas and air within the tube 46 and chamber 45 of the primarymixing member B produces a relatively raw fuel mixture which passes intothe tray ll of the secondary mixing member 0. Reaching the tray ll, saidmixture moves radially outward therein along both top and bottom of theannular plate in a lower stratum next above the tray H and in an upperstratum next beneath the cap 54'. The fuel mixture, Stratified by theannular plate 55 of the secondary mixing member C, is further mixed andheated in said secondary mixing member 0 and, upon reaching 1 theperimeter of the tray l l, is deflected upwardly formed, is susceptibleof becoming warped to the detriment of uniformity in the spacing of thesame relative to the tray l1 and cap 54. To

prevent such warping of said annular plate 55,

upstruelc beads 64 are formed in the inner marinto the burner mouth 67by the upturned rim 2! of said tray. Meeting and commingling with thegas thus entering the burner mouth 61 is secondary air which also enterssaid mouth 61 through the annular port 26 between said rim 2! andthegenerating ring A. The admixture radiation from the tray 2| and flang 5of gas and secondary air, ascending in the fluelike mouth 61, is lightedto produce thesjsbu'rfner flame. The heat from this flame keeps;:the

burner parts hot after the priming liquid isc'onsinned, thus enablingthe mixing members B, C and the generating ring A tocontinuejifunctioning in their respective capacities. Theburner flame isgraduated between high andrlow" extremes by adjustment of the needle-tiprelative to its seat in the fitting 31. The generating ring A issufficiently heated by thisiiflaiiie to convert kerosene into a gas eventhough theflame is low, the heating of said generating ring. n suchcase, being accomplished, in substantial part, by

of the secondary mixing member Ci tion of a. high flame in the burner:is attended with a relatively strong upflow ofsedondary air through theport 26, the outer boundary of which is formed by the generating ringA.--' 'T ;hi s-volumi nous upflow of air along the inner: ace of thegenerating ring A protects said ring gainst excessive heating that wouldtend tolbiirn it out and keeps said generating ring from? being sohighly heated as to cause surging infthe process of conversion thereinof the liquid fuel into a gas.

From the foregoing, it will be seen that my improved, compact furnace,though offsimple and relatively inexpensive constructionfiscapable oflong and efficient operation even though the fuel used is of low grade.The uses to which the furas herein described, may be made withinthescope of what is claimed without departing from the spirit of myinvention.

Having described my invention, what I claim as new and desire to protectby Letters Patent is:

1. In a furnace of the character described, a tank and a burner, thetank being adapted to contain liquid fuel together withair underpressure for expelling such fuel from the tank, legs extending upwardlyfrom said tank, said burner consisting of 'a generating ring-[and aprimary and secondary mixing members;' said secondary member including acircular tray, an annular plate and a circular cap, all "verticallyaxially aligned, said tray being supported on said legs and formed witha central aperture therein, said annular plate being supported'lon andspaced 'saidprimary mixing member including a'body depending from saidtray andzhaving a mixing chamber therein opening upwardly into saidtrayjthrough its central aperture, said primary member further includinga mixing tube branch 'ing from said body and leading to the chambertherein, said generating ring being a flat-walled structure of annularlytubular, formation disposed in axially upright position encircling saidtray and cap, conduit means for conducting liquid fuel from the tank tothe interior of the generating ring, other conduit means for conductinggas from the generating ring and discharging it into said mixing tube ina manner to induce the influx of air thereinto along with said gas, saidtray having an upturned rim at the perimeter thereof to deflect upwardlythe gases issuing from said passageways above and beneath said an'nularplate, said upturned rim being spaced inwardly from the generating ringto provide an air ingress port between tray and ring, said cap and trayforming the inner confine and said generating ring forming the outerconfine of an annular flue-like burner-mouth which is fed from beneathby the gas upwardly deflected from said rim and by secondary airentering said port.

2. A portable furnace of the character described comprising a tank and aburner, the tank being adapted to contain liquid fuel together with airunder pressure for expelling such fuel from the tank, said burnerconsisting of a generating ring and primary and secondary mixingmembers, said secondary member including a circular tray, an annularplate and a circular cap, all vertically axially aligned, said traybeing supported on the tank and formed with a central aperture therein,said annular plate being supported on and spaced above said annularplate to form an upper passageway, both of said passageways openingradially outward toward the perimeter of said tray, said primary mixingmember including a body depending from said tray and having a mixingchamber therein opening upwardly into said tray through its centralaperture, said generating ring being a flat-walled structure ofannularly tubular formation disposed in axially upright positionencircling said tray and cap, conduit means for conducting liquid fuelfrom the tank to the interior of the generating ring, other conduitmeans for conducting gas from the generating ring and delivering it intosaid mixing chamber in a manner to induce the influx of air thereintoalong with said gas, the rim of said tray being spaced inwardly from thegenerating ring to provide an air ingress port between tray and ring,said cap and tray forming the inner confine and said generating ringforming the outer confine of an annular flue-like burner-mouth which isfed from beneath by the gas issuing from said passageways above andbeneath said annular plate and by secondary air entering said port.

3. In a furnace of the character described, a burner consisting of agenerating ring and primary and secondary mixing members, said secondarymember including a circular tray, an annular plate and a circular cap,all vertically axially aligned, said tray being formed with a centralaperture therein, said annular plate being spaced flatwise above saidtray to form a, lower passageway and spaced beneath said cap to form anupper passageway, both passageways opening radially outward toward theperimeter of said tray, said primary mixing member including a bodybeneath said tray having a, mixing chamber "gas from the generating ringand delivering it into said mixing chamber in a manner to induce theinflux of air thereinto alon with said gas,

"by the gas upwardly deflected from said rim and by secondary airentering said port.

4, In a furnace of the character described, a burner consisting of agenerating ring and primary and secondary mixing members, said'secondarymember including a circular tray and a circular cap vertically axiallyaligned therewith, said tray being formed with a central aperturetherein and said cap being spaced-above said tray to' 'form a passagewayopening radially outward toward the perimeter of the tray, said primarymixing member including a body beneath said tray having a mixing chambertherein opening upwardly thereinto through its central aperture,

said primary member further including a mixing tube branching fromsaidbody and leading to the chamber therein, said generating ring beinga fiat-Walled structure of annularly tubularformation disposed inaxially upright position encircling said tray and cap, conduit means forconducting liquid fuel from the tank to the interior of the generatingring, other conduit means for conducting gas from thergenerating ring.and discharging it into said mixingtube in a manner to induce the influxof air thereintcalong with said gas, a deflector-vane within said tubefor inducing turbulence in the gas and air entering said tube, the rimof said tray being spaced inwardly from the generating ring to providean air ingress port between tray and ring, said cap and tray at theinside and said generating ring at the outside forming an annularburner-mouth which is fed from beneath by the gas issuing from saidpassageway and by secondary air entering said port.

5. In a furnace of the character describeda burner consisting of agenerating ring and a mixing member including a circular tray and'acircular cap verticallyaxially aligned therewith, said tray being formedwith a centralaperture therein and said cap being spaced above said trayto form a passageway opening radially outward toward the perimeter ofthe tray, said generating ring being a fiat-waned structure ofannul'arly tubular formation disposed in axially upright positionencircling said tray and cap, conduit means for conducting liquid fuelto the interior of the generating ring, other conduit'means forconducting gas from the-generatingring and delive'ring'it, together withaccompanying air, into said tray thrcugh'the central aperture therein,the rim of said tray-being spaced inwardly from the generating ring toprovide an air ingress port between tray and ring, said cap and tray atthe inside and said generating ring at the outside forming an annularburner-mouth which is fed from beneath by the gas issuing fromsaid-passageway and by secondary air entering said port. 6. Ina furnaceof the character described, a burner consisting of a generating ring andprimary and secondary mixing members, said secondary'meinber including acircular tray, an annular plate and a circular cap, all verticallyaxially aligned, said tray being formed with a central aperture therein,said annular plate being spaced fiatwise above said tray to form a lowerpassageway and spaced beneath said cap to form 8 an' upper passageway,both passageways opening radially outward toward the perimeter of saidtray, said primary mixing. member including a body beneath said' trayhaving a mixing chamber therein opening upwardlyiinto the tray throughits central aperture, said-generating ring being a flat-walledstructurev of annularly tubular formation disposed in axially uprightposition encircling said tray and cap, conduit means for conductingliquid to the interior of the generating ring, (other conduit means forconducting gas from" the generating ring and delivering it into said;mixing chamberv in a manner to induce the influx of airthereinto alongwith said gas, the

rimg'of said :tray being spaced inwardly from the generating-ring toprovide anair ingress port between. tray and ring, said cap and. tray atthe inside and said generating ring at the outside forming an annularburner-mouth which is fed from beneath by the gas issuing from saidpassageways above and beneath said annular plate andby secondary airentering said port.

.7. Inc. furnace-of the character described, a burner consisting of agenerating ring and a mixing member including a circular tray, anannular plate and .a circular cap, all vertically axially aligned, saidtray being iormedwith a central aperture therein, the annular platehaving feet at one side thereof and shoulders at its opposite side, saidfeet resting on said tray and spacing said -plate flatwisethereabove toform a lower passageway, .said' cap being supported on said shouldersandspaced above said annular plate to form-an upper passageway, both ofsaid passageways opening radially outward toward the perimeter or saidtray, said generating ring being a flat-walled structure. of annularlytubular formation encircling said tray and cap, conduit means forconducting liquid fuel to the interiorof the generating-ring, otherconduit means for conducting gas from the generating ring anddeliveringit, together with accompanying air, intosaid tray through thecentral aperture therein, the rim of said tray beingspaced inwardly fromthe generating ring to provide an air ingress port between tray andring, said cap and tray at the inside and said generating ring at theoutside forming an annular burner-mouth which is fed from beneath by thegas issuing from said passageways and by secondary air entering saidport.

8. In a furnace ofthe character described, a burner consisting of agenerating ring andprimaryand secondary mixing members, said secondarymember including a circular tray formed with a central aperture.therein, an annular plate and .a circular cap, all vertically axiallyaligned, said tray having a mounting therefor, said an,- nular platehaving feet at one side thereof circumferentially spaced about the sameand havingshoulders at its opposite side also circumierentially spacedabout said annular plate, said feet restingon said tray and spacing saidplate fiatwise thereabove' to form a lower passageway, said cap-beingsupported on said shoulders and spaced above said annular plate to forman upper passageway, both of said passageways opening radially outwardtoward the perimeter of said tray, said primary mixing member includinga body beneath said tray and vhaving a mixing chamber therein opening atthe top thereof into "said traythrou'gh its central aperture, a stayboltextending through the cap, plate, tray and body and holding said cap andplate in place relative to said tray, said generating ring being afiat-walled structure of, .annularly tubular formation disposed inaxially upright position encircling said tray and cap, conduit means forconducting liquid fuel to the interior of the generating ring, otherconduit means for conducting gas from the generating ring anddischarging it into said mixing chamber in a manner to induce the influxof air thereinto along with said gas, the rim of said tray being spacedinwardly from the generating ring to provide an air ingress port betweentray and ring, said cap and tray at the inside and said generating ringat the outside forming an annular burner-mouth which is fed from beneathby the gas issuing from said passageways and by secondary air enteringsaid port.

9. In a furnace of the character described, a burner consisting of agenerating ring and a mixing member including a circular tray, a thinannular plate and a circular cap, all vertically axially aligned, saidtray being formed with a central aperture therein, the annular platehaving feet at one side thereof circumferentially spaced about the sameand having shoulders at its opposite side in axial opposition thereto,the feet resting on said tray and spacing said plate flatwise thereaboveto form a lower passageway, said cap being supported on said shouldersand spaced above said annular plate to form an upper passageway, both ofsaid passageways opening radially outward toward the perimeter of saidtray, said annular plate being formed with radially disposed reinforcingbeads marginally thereof at positions aligned with the paired feet andshoulders thereon, said generating ring being a flat-walled structure ofannularly tubular formation encircling said tray and cap, conduit meansfor conducting liquid fuel to the interior of the generating ring, otherconduit means for conducting gas from the generating ring and deliveringit, together with accompanying air, into said tray through the centralaperture therein, the rim of said tray being spaced inwardly from thegenerating ring to provide an air ingress port between tray and ring,said cap and tray at the inside and said generating ring at the outsideforming an annular burner-mouth which is fed from beneath by the gasissuing from said passageways and by secondary air entering said port.

10. In a furnace of the character described, a burner consisting of agenerating ring and a mixing member including a circular tray, anannular plate and a circular cap, all vertically axially aligned, saidtray being formed with a central aperture therein, the annular platehaving feet at one side thereof and shoulders at its opposite side, saidfeet resting on said tray and spacing said plate flatwise thereabove toform a lower passageway, said cap being supported on said shoulders andspaced above said annular plate to form an upper passageway, both ofsaid passageways opening radially outward toward the perimeter of saidtray, means for centering the cap relative to the tray, means associatedwith said shoulders and cooperating with the cap to center the annularplate relative to said cap, said generating ring being a fiat-Walledstructure of annularly tubular formation encircling said tray and cap,conduit means for conducting liquid fuel to the interior of thegenerating ring, other conduit means for conducting gas from thegenerating ring and delivering it, together with accompanying air, intosaid tray through the central aperture therein, the rim of said traybeing spaced inwardly from the generating ring to provide an air ingressport between tray and ring, said cap and tray at the inside and saidgenerating ring at the outside forming an annular burner-mouth which isfed from beneath bythe gas issuing from said passageways and bysecondary air entering said port.

11. A liquid fuel burner including a generating ring of annularlytubular formation, a mixing member having a terminal portion disposedwithin and spaced from said generating ring and forming in conjunctiontherewith an axially elongated annular burner-mouth having an annulardischarge opening at one end thereof and an ingress opening forsecondary air at the other end thereof, said mixing member having apassage way therein opening radially outward into the burner-mouthbetween said air ingress and discharge openings, conduit means forconducting liquid fuel to the interior of the generating ring, otherconduit means for conducting gas from the generating ring and feedingit, together with accompanying primary air, into the passageway in saidmixing member for delivery into said burner-mouth and for admixturetherein with secondary air entering said air ingress opening.

12. A liquid fuel burner including a generating ring of annularlytubular formation having lengthwise fiat inner and outer walls definingbetween them a uniformly thin axially elongated annular generatingchamber, a mixing member having a terminal portion disposed within andspaced from the inner wall of said generating ring and forming inconjunction therewith an axially elongated annular burner-mouth axiallycoextensive with said generating chamber, said mixing member having apassageway therein annularly opening radially outward for the fulldischarge of fuel mixture therefrom into the burnermouth intermediatelyof the same and of said axially elongated chamber in said generatingring, conduit meansfor conducting liquid fuel to said chamber in saidgenerating ring, other con duit means for conducting gas from saidchamber in said generating ring and feeding it, together with airadmixed therewith, into said passageway in said mixing member.

THOMAS KELLER.

CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 231,674 Kells Aug. 31, 1880886,534 Goverts Jul 24, 1888 403,405 Young et a1 May 14, 1889 459,057Twitchell Sept. 8, 1891 496,450 Shedlock May 2, 1893 633,650 BumgarnerApr. 25, 1899 775,428 Meldrum Nov. 22, 1904 1,261,277 Olson Apr. 2, 19181,393,706 Shannon Oct. 11, 1921 1,400,384 Stephens Dec. 13, 19211,421,031 Schmitt June 27, 1922

